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authorEvgeniy Stepanov <eugeni.stepanov@gmail.com>2016-11-29 00:22:50 +0000
committerEvgeniy Stepanov <eugeni.stepanov@gmail.com>2016-11-29 00:22:50 +0000
commit9eaa3ef462b338fa2426930e2d3072b43291abcf (patch)
tree267a7e011a8126b7f32027505beb5cb4bb92c136 /lib/msan/msan_allocator.cc
parentca0aa08d646e22e1639217be0461cef96dcb83a3 (diff)
Return memory to OS right after free (not in the async thread).
Summary: In order to avoid starting a separate thread to return unused memory to the system (the thread interferes with process startup on Android, Zygota waits for all threads to exit before fork, but this thread never exits), try to return it right after free. Reviewers: eugenis Subscribers: cryptoad, filcab, danalbert, kubabrecka, llvm-commits Patch by Aleksey Shlyapnikov. Differential Revision: https://reviews.llvm.org/D27003 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@288091 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/msan/msan_allocator.cc')
-rw-r--r--lib/msan/msan_allocator.cc4
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/msan/msan_allocator.cc b/lib/msan/msan_allocator.cc
index d41d5b620..a82e89845 100644
--- a/lib/msan/msan_allocator.cc
+++ b/lib/msan/msan_allocator.cc
@@ -103,7 +103,9 @@ static AllocatorCache fallback_allocator_cache;
static SpinMutex fallback_mutex;
void MsanAllocatorInit() {
- allocator.Init(common_flags()->allocator_may_return_null);
+ allocator.Init(
+ common_flags()->allocator_may_return_null,
+ common_flags()->allocator_release_to_os_interval_ms);
}
AllocatorCache *GetAllocatorCache(MsanThreadLocalMallocStorage *ms) {